has part has part characteristic of inheres in has modifier Orofacial cleft Cleft maxillary alveolar ridge 2009-07-12T10:47:29Z Notch of gum ridge UMLS:C2919907 Cleft anterior maxilla UMLS:C4280386 Notch of alveolar process HP:0410003 UMLS:C1398533 Cleft maxillary alveolus Cleft of alveolar process The palate develops from the frontonasal and maxillary prominences between 4 and 12 weeks of gestation. During gestational weeks 4 to 7, the primary palate originates from the median palatine process, which itself originated from frontonasal prominence. The lip, alveolus, and hard palate anterior to the incisive foramen all share this origin in development. During this period, disruptions of palatal development process can result in primary palate clefting. The secondary palate develops from the lateral palatine processes originating from the maxillary prominences between 7 and 12 weeks, and the hard palate posterior to incisive foramen and the soft palate are developmental products of this process. As such, disruptions during this time will result in secondary palate clefts. The alveolus is a component of the primary palate, and alveolar cleft results from mal-development of the frontonasal prominence. As such, it is most closely related to cleft lip and cleft palate. Generally, alveolar clefts are located between the lateral incisor and canine. Cleft of gum ridge Alveolar cleft Cleft of alveolar ridge of maxilla A gap (cleft) affecting one of the alveolar ridges, which are the protuberances in the mouth that contain the sockets (alveoli) of the teeth. An alveolar cleft can affect all structures of the alveolar ridge, including the gingiva, other mucosa, periosteum, alveolar bone, and teeth. Alveolar cleft occurs in response to divergence from normal development during frontonasal prominence growth, contact, and fusion. The most common alveolar portion of the cleft is located between the lateral incisor and the canine. Alveolar ridge cleft SNOMEDCT_US:445306000 Notch of alveolar ridge HP:0010289 cleft abnormal alveolar ridge